OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

UNH $350.00 Put

UNH261218P00350000

Latest saved OI1,676Oct 23, 2026
Last change-14vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $350.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,7178580 2026-10-02: 1,643 OI2026-10-05: 1,554 OI2026-10-06: 1,584 OI2026-10-07: 1,603 OI2026-10-08: 1,603 OI2026-10-09: 1,615 OI2026-10-14: 1,668 OI2026-10-15: 1,707 OI2026-10-16: 1,717 OI2026-10-21: 1,690 OI2026-10-23: 1,676 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

UNH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,676-14
Oct 21, 20261,690-27
Oct 16, 20261,717+10
Oct 15, 20261,707+39
Oct 14, 20261,668+53
Oct 09, 20261,615+12
Oct 08, 20261,6030
Oct 07, 20261,603+19
Oct 06, 20261,584+30
Oct 05, 20261,554-89
Oct 02, 20261,643No prior observation